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1.8 E: Trigonometry

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Question 48

Solve, for −180≤x≤180-180 \leq x \leq 180−180≤x≤180, the equation,

2cot⁡2x−cosec2x+cosecx=4 2\cot^2x - \text{cosec}^2x + \text{cosec}x = 4 2cot2x−cosec2x+cosecx=4

Give your answers to 1 decimal place where appropriate.

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Markscheme

1.8 E: Trigonometry Questions

  1. A Level
  2. /Maths
  3. /1.8 E: Trigonometry

317 exam-style questions on AQA A Level Maths 1.8 E: Trigonometry, covering 1.8.1 Trigonometric definitions, rules and radians, 1.8.2 Small angle approximations (A-level only), 1.8.3 Trigonometric functions and exact values, 1.8.4 Reciprocal and inverse trigonometric functions (A-level only), 1.8.5 Trigonometric identities, 1.8.6 Compound and double angle formulae (A-level only), 1.8.7 Solving trigonometric equations, 1.8.8 Proofs with trigonometric identities, and 1.8.9 Trigonometry in context. Each one has a worked solution and a mark scheme showing where the marks go.

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